A tribe is a social unit consisting of a number of families united under a common hereditary chieftain. Typically, trolls organize in these groups, and some sources suggest tauren and taunka identify more often as tribes than clans. The term tribe is sometimes used interchangeably with the term clan.
Darkspear tribe - Main troll tribe of the Horde. Led by Vol'jin. This tribe has cities and outposts scattered across the world, mainly in Durotar. It is sometimes called the "Darkspear clan".
Bloodscalp tribe - Present in Stranglethorn Vale. Led by Gan'zulah. It is sometimes called the "Bloodscalp clan"[1].
Murlocs live in tribes, each tribe to its own village of usually six to twelve individuals.LoM 135MoM 63 Many murloc tribes exist, and the tribes get along with each other reasonably well.DF 10 Each tribe has a name that seems indicative of its members’ activities, appearance, or history, such as "Lostfin" or "Bluegill". Multiple tribes in the same area are organized into larger clans, and every so often all tribes in a clan meet to discuss issues of importance.LoM 135DF 10 However, keeping a large group of murlocs coordinated and in agreement for any significant length of time is difficult.LoM 135 Members of a single tribe are usually similar in appearance.LoM 135
Stonemaul - This group of ogres split in two: some stayed in Lordaeron and eventually became the crushridge, the others went to Kalimdor. The group in Kalimdor was brought back into the Horde by Rexxar. It is now led by Mok'Morokk (although adventurers can overthrow him in a quest). The most probable succesor would be Tharg, but some desire Rexxar's return. It is currently located in Dustwallow Marsh.
Kurenai: This group of Broken, whose name means "redeemed", have attempted to re-establish contact with their "pure" cousins from the Exodar. They are enemies of the Horde, much like the majority of their race. Their home ground is the city of Telaar in Nagrand; their other major outpost is the Orebor Harborage in Zangarmarsh.
Murkblood: The Murkblood tribe is a tribe of hostile Broken located in the Underbog of Coilfang Reservoir, as well as Nagrand. They are enemies of both the Kurenai and the Mag'har. They are lead by the hunter Swamplord Musel'ek. Some of the tribe has also been enslaved by the Dragonmaw Clan and are kept working in the Netherwing mines. Theses Murkblood have secretly allied with Netherwing in an attempt to drive away the Dragonmaw.
Dreghood: This tribe of Broken has been almost completely enslaved by the Naga in Zangarmarsh and the Illidari demons. They were enslaved when one of the tribe betrayed them to the Illidari. However many have escaped to the Temple of Telhamat and are relearning the ways of the light. Their capital was Sha'naar in Hellfire Peninsula before they were enslaved.
Wrekt: This tribe of hostile Broken were partially enslaved by the Naga in Zangarmarsh. The ones that remained free have allied with the TuuremLost Ones.
Ashtongue tribe: The Ashtongue is the faction of Broken in the service of Illidan Stormrage. They are the most evil tribe of Broken and their leader, Akama, is considered to be the most evil traitor against the draenei people. These Broken were handpicked by Akama himself to maintain his evil facade with Illidan Stormrage.
Ashtongue Deathsworn: The Ashtongue Deathsworn are Akama's personal guard, they are a subdivision of the tribe that know Akama's true intention. They are seeking adventurers to aid their master for the final battle against Illidan.
Magtoor's tribe: This tiny tribe lead by Magtoor went through the Dark Portal when it was first opened. They made a home for themselves in the Swamp of Sorrows. Despite having received emissaries from the Exodar they remain neutral to both the Horde and the Alliance. They are enemies of the insane Lost Ones of the Swamp of Sorrows, that went with them through the Dark Portal.
Umbrafen: One of the 3 Lost One tribes in Zangarmarsh. This tribe is allied with the Naga and are extremely cruel to escaped slaves. They are lead by Kataru.
Windyreed: A tribe of Lost Ones located in Nagrand. Due to their negative impact on the environment, they are enemies with the Shaman of the Earthen Ring.
Portal Seekers: The Portal Seekers travelled through the Dark Portal with Magtoor, but have descended into madness. They reside in the Blasted Lands near the Portal.